Graph returned an error for social auto post (facebook)

[ala]

dear all osclass user and developer!
today i have problem with my facebook auto post plugin that stop post to facebook and get error message  like images

i got plugin from http://wordpresscustomcode.com/product/osclass-social-media-auto-poster/

also i have try to login as admin and edit ad with different browser but still got this error


 anyone or developer of this plugin can help me to fix this problem

[malikin]

delete plugin from FTP access

[ala]

i have been try delete and install new blank plugin but still got problem

Thank for your help